Different strategies used in the retention phase of orthodontic treatment

Vinicius Schau de Araújo LIMA, Felipe de Assis Ribeiro CARVALHO, Rhita Cristina Cunha ALMEIDA, Jonas CAPELLI JÚNIOR

Objective: To identify most frequent clinical conducts, considering the following variables: 1) used appliances; 2) time of use; 3) protocol of use in daily hours and evolution with along time; 4) percentage of patients in follow up 1 year after treatment; and 5) most frequent observed relapses. Methods: It was used a questionnaire distributed to all specialization course of Orthodontics inscribed in the Brazilian Federal Council of Dentistry until October of 2005. Results and Conclusion: It was obtained 91 valid questionnaires. For data analysis were used descriptive statistics and chi-square for linear tendency and chi-square for linear trend and chi-square for multivariate linear trend. We can conclude that: 1) on upper arch, the most used appliances were Hawley, wraparound and acetate plate; in the lower multi-stranded rod, steel rod not bonded to incisors and rod bonded to the incisors; 2) it was indicated its use for more than 24 months for the upper arch, with a trend toward its less use than in the lower arch; 3) the protocol of use in the upper arch begins with 24 hours/day, reducing after the second year; for the lower arch the protocol of hours/day was kept stable; 4) after 1 year of retention most than 50% of treated cases were re-examined; 5) most common relapses were crowding, giroversion and opening of diastemas.

Keywords: Retention. Relapse. Stability.

How to cite: Lima VSA, Carvalho FAR, Almeida RCC, Capelli Júnior J. Different strategies used in the retention phase of orthodontic treatment. Dental Press J Orthod. 2012 July-Aug;17(4):115-21.

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